EP2201250B1 - Élément de pompe - Google Patents

Élément de pompe Download PDF

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Publication number
EP2201250B1
EP2201250B1 EP08801190A EP08801190A EP2201250B1 EP 2201250 B1 EP2201250 B1 EP 2201250B1 EP 08801190 A EP08801190 A EP 08801190A EP 08801190 A EP08801190 A EP 08801190A EP 2201250 B1 EP2201250 B1 EP 2201250B1
Authority
EP
European Patent Office
Prior art keywords
pump insert
pressure plate
insert according
pump
ring
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
EP08801190A
Other languages
German (de)
English (en)
Other versions
EP2201250A1 (fr
Inventor
Kerstin Rosenkranz
Matthias Wendt
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
ixetic Bad Homburg GmbH
Original Assignee
ixetic Bad Homburg GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by ixetic Bad Homburg GmbH filed Critical ixetic Bad Homburg GmbH
Publication of EP2201250A1 publication Critical patent/EP2201250A1/fr
Application granted granted Critical
Publication of EP2201250B1 publication Critical patent/EP2201250B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C2/00—Rotary-piston machines or pumps
    • F04C2/30—Rotary-piston machines or pumps having the characteristics covered by two or more groups F04C2/02, F04C2/08, F04C2/22, F04C2/24 or having the characteristics covered by one of these groups together with some other type of movement between co-operating members
    • F04C2/34—Rotary-piston machines or pumps having the characteristics covered by two or more groups F04C2/02, F04C2/08, F04C2/22, F04C2/24 or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in groups F04C2/08 or F04C2/22 and relative reciprocation between the co-operating members
    • F04C2/344—Rotary-piston machines or pumps having the characteristics covered by two or more groups F04C2/02, F04C2/08, F04C2/22, F04C2/24 or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in groups F04C2/08 or F04C2/22 and relative reciprocation between the co-operating members with vanes reciprocating with respect to the inner member
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C2240/00—Components
    • F04C2240/30—Casings or housings

Definitions

  • the invention relates to a pump insert of a vane pump without its own housing as in the WO 2005/001246 described, which discloses the preamble of claim 1.
  • Such pump inserts are used in a variety of applications in existing machine housing, such. B. in a transmission housing of a motor vehicle or other housings that require a hydraulic supply used.
  • the disadvantage here is that the fasteners of the pump insert in the corresponding housings by screws or cover or the like are costly, bulky and expensive.
  • a pump insert of a vane pump without its own housing which is used in a transmission housing, such as a motor vehicle, wherein the pump insert a first pressure plate, a contour ring, a rotor, a drive shaft which drives the rotor, wings and a second Compression plate and is fixed to the second pressure plate by a locking ring axially in the gear housing.
  • a pump insert according to the invention is characterized in that the first pressure plate is pressed axially against the contour ring and the second pressure plate and the securing ring by a pressure field.
  • a pump insert in which the pressure field is annular. Furthermore, a pump insert is preferred in which the annular pressure field extends radially inwardly from the outer periphery of the first pressure plate.
  • Another inventive pump insert is characterized in that the first pressure plate has two seals. Also preferred is a pump in which the first seal of the first pressure plate is arranged radially outward on the circumference and the second seal of the first pressure plate is arranged axially on the inside of the pressure field.
  • a pump insert is preferred in which in the pressureless state, the second axially disposed seal is effective as an axial biasing element and presses the pump insert against the retaining ring in the pressureless state.
  • a pump according to the invention is characterized in that the axial seal is designed as a combination seal consisting of a sealing and supporting element.
  • the axial seal is designed as a combination seal consisting of a sealing and supporting element.
  • separate spring devices are provided which press the pump insert against the retaining ring.
  • Another pump according to the invention is characterized in that the second pressure plate has a radial seal on the outer circumference, which seals against the transmission housing. Also, a pump insert is preferred in which the second pressure plate in the storage area of the shaft has a shaft seal.
  • a pump insert according to the invention is also distinguished by the fact that the support geometry for the circlip groove in the gear housing and the contact surface on the second pressure plate are self-locking.
  • the angles in the support region of the retaining ring are designed differently by substantially 5 degrees.
  • a pump insert wherein the support angle in the housing is 25 degrees. Furthermore, a pump insert is preferred in which the support angle of the locking ring on the second pressure plate is 30 degrees.
  • FIG. 1 is a partial cross section through a transmission housing 1 with a pump insert 5 according to the invention.
  • a transmission housing 1 includes a stepped blind hole 3, in which the pump insert 5 is arranged.
  • the pump insert 5 has a first pressure plate 7, a contoured ring 9, a rotor 11 and a second pressure plate 13.
  • radially displaceable wings 15 are arranged, which run along with rotation of the rotor 11 with its upper wing edge on the contour of the contour ring 9.
  • cells are created which enlarge or reduce, depending on the contour section, and thereby suck in and eject oil.
  • the rotor 11 is driven by a drive shaft 17 by means of a toothing 19, wherein the drive shaft 17 in this case via a sprocket 21 or optionally via another drive element such. As gears or a belt drive is driven.
  • the shaft 17 is thereby cantilevered in the second pressure plate 13. Also conceivable would be a storage in both printing plates.
  • the pump insert 5 is fixed by a locking ring 23 axially in the gear housing 1, wherein in the gear housing 1, an approximately part-circular groove 25 is arranged, in which the locking ring 23 is fixed, while on the second pressure plate 13 of the locking ring 23 rests on a slope 27.
  • the first pressure plate 7 has a radial seal 29 and an axial seal 31, which seal a pressure field 33 between the transmission housing 1 and the first pressure plate 7.
  • the pressure field 33 thus extends from the radial outer circumference of the first pressure plate 7 to the radial inner delimitation by the sealing means 31.
  • the pressure plate 7 In the radially inner region of the seal 31 about the axis of the drive shaft 17, the pressure plate 7 is not acted upon by the pressure, so that the pressure field 33rd , which is arranged annularly around the pressure plate 7, substantially in the outer region of the pressure plate 7, an axial force against the contour ring 9 and the second pressure plate 13 applies, wherein the second pressure plate 13 then presses against the locking ring 23, which in turn compresses the axial forces initiates via the housing groove 25 in the transmission housing 1.
  • the axial fixation of the pump insert 5 in the unpressurized state, ie out of operation, if no axial pressure field in the region 33 is present, is realized by the sealing means 31, which designed as axially biasing member with a corresponding spring action is.
  • the sealing means 31 which designed as axially biasing member with a corresponding spring action is.
  • the pump insert 5 is pushed somewhat deeper into the gearbox housing 1 for mounting the securing ring 23.
  • a corresponding spring travel of the sealing device 31 is provided.
  • the use of a combination seal consisting of a sealing element and a supporting element can also be useful in order to bridge the gap which has been enlarged on account of the enlarged mounting clearance.
  • FIG. 2 is shown in an enlargement in the area A, the geometry in the support region of the retaining ring 23.
  • the angles in the support region of the retaining ring 23 are made different in the gear housing 1 and on the second pressure plate 13, in this case with an angular difference of about 5 degrees.
  • the locking ring 23 sets in the approximately semicircular groove 25 of the gear housing 1 at an angle 35 of about 25 degrees, while it rests on the slope 27 of the second pressure plate 13 at an angle 37 of about 30 degrees. This results in that the support region of the retaining ring 13 is designed to be self-locking.
  • a pump insert 5 for a gear pump in vane type helps especially in this application and the space available space, with minimal construction costs and cost to attach the pump in the transmission.
  • Particularly advantageous is the combination of a pump insert 5 without pump housing with one side acting on a pressure field axial force and derivative of the axial force by means of a retaining ring.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Details And Applications Of Rotary Liquid Pumps (AREA)
  • Rotary Pumps (AREA)
  • Saccharide Compounds (AREA)

Claims (14)

  1. Élément de pompe (5) d'une pompe à palettes sans propre carter, lequel est inséré dans un carter d'engrenage (1), sachant que l'élément de pompe (5) comporte une première plaque de pression (7), un anneau de contour (9), un rotor (11), un arbre d'entraînement (17) et des palettes (15), caractérisé en ce que l'élément de pompe (5) comporte une deuxième plaque de pression (13) et est fixé axialement dans le carter d'engrenage (1) au niveau de la deuxième plaque de pression (13) par une bague de sécurité (23).
  2. Élément de pompe selon la revendication 1, caractérisé en ce que la première plaque de pression (7) est poussée par l'intermédiaire d'une zone de pression (33) axialement contre l'anneau de contour (9) et la deuxième plaque de pression (13) et la bague de sécurité (23).
  3. Élément de pompe selon la revendication 2, caractérisé en ce que la zone de pression (33) est réalisée en forme d'anneau de cercle.
  4. Élément de pompe selon la revendication 3, caractérisé en ce que la zone de pression (33) en forme d'anneau de cercle s'étend radialement vers l'intérieur à partir de la périphérie extérieure de la première plaque de pression (7).
  5. Élément de pompe selon l'une quelconque des revendications 1 à 4, caractérisé en ce que la première plaque de pression (7) comporte deux garnitures d'étanchéité (29, 31).
  6. Élément de pompe selon la revendication 5, caractérisé en ce que la première garniture d'étanchéité (29) assure l'étanchéité radialement vers l'extérieur sur la périphérie de la première plaque de pression (7), et la deuxième garniture d'étanchéité (31) assure l'étanchéité axialement vers l'intérieur au niveau de la zone de pression (33) en forme d'anneau de cercle de la première plaque de pression (7).
  7. Élément de pompe selon la revendication 6, caractérisé en ce que la deuxième garniture d'étanchéité (31) axiale, à l'état non soumis à une pression, pousse en tant qu'élément de précontrainte axial l'élément de pompe (5) contre la bague de sécurité (23).
  8. Élément de pompe selon l'une quelconque des revendications 5 à 7, caractérisé en ce que la deuxième garniture d'étanchéité (31) axiale est réalisée sous la forme d'une garniture d'étanchéité combinée, formée par un élément d'étanchéité et un élément de support.
  9. Élément de pompe selon l'une quelconque des revendications précédentes, caractérisé en ce que la deuxième plaque de pression (13) comporte une garniture d'étanchéité (32) radiale sur sa périphérie extérieure.
  10. Élément de pompe selon l'une quelconque des revendications précédentes, caractérisé en ce que la deuxième plaque de pression (13) comporte une bague d'étanchéité pour un arbre dans la zone d'un palier d'arbre.
  11. Élément de pompe selon l'une quelconque des revendications précédentes, caractérisé en ce que la géométrie de support de la bague de sécurité (23) est réalisée de manière autobloquante dans le carter d'engrenage (1) et au niveau de la deuxième plaque de pression (13).
  12. Élément de pompe selon la revendication 11, caractérisé en ce que les angles dans la zone de support de la bague de sécurité (23) sont différents de 5 degrés.
  13. Élément de pompe selon la revendication 11 ou 12, caractérisé en ce que l'angle (35) pour le support de la bague de sécurité (23) dans le carter d'engrenage (1) mesure 25 degrés.
  14. Élément de pompe selon l'une quelconque des revendications 11 à 13, caractérisé en ce que l'angle de support (37) de la bague de sécurité (23) sur la deuxième plaque de pression (13) mesure 30 degrés.
EP08801190A 2007-09-19 2008-08-19 Élément de pompe Active EP2201250B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102007044999 2007-09-19
PCT/DE2008/001367 WO2009036723A1 (fr) 2007-09-19 2008-08-19 Élément de pompe

Publications (2)

Publication Number Publication Date
EP2201250A1 EP2201250A1 (fr) 2010-06-30
EP2201250B1 true EP2201250B1 (fr) 2011-02-23

Family

ID=40298738

Family Applications (1)

Application Number Title Priority Date Filing Date
EP08801190A Active EP2201250B1 (fr) 2007-09-19 2008-08-19 Élément de pompe

Country Status (6)

Country Link
US (1) US8425206B2 (fr)
EP (1) EP2201250B1 (fr)
AT (1) ATE499531T1 (fr)
DE (2) DE112008002391A5 (fr)
ES (1) ES2359879T3 (fr)
WO (1) WO2009036723A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102012020705A1 (de) 2012-10-23 2014-04-24 Daimler Ag Kraftfahrzeuggetriebevorrichtung mit einer Getriebeölpumpe
DE102015210098A1 (de) 2015-06-02 2016-12-08 Zf Friedrichshafen Ag Als Schnappring ausgeführter Sicherungsring

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102472271B (zh) 2009-08-04 2014-12-24 株式会社捷太格特 电动泵单元
DE102011055020A1 (de) 2010-11-23 2012-05-24 Ixetic Bad Homburg Gmbh Pumpeneinsatz
DE102011017481B4 (de) 2011-04-19 2024-02-15 Mercedes-Benz Group AG Pumpeinrichtung für eine Komponente, insbesondere ein Getriebe, eines Kraftwagens
DE102016200893A1 (de) * 2016-01-22 2017-07-27 Magna Powertrain Bad Homburg GmbH Pumpeneinsatz

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4373871A (en) * 1981-05-04 1983-02-15 General Motors Corporation Compact power steering pump
DE3624173A1 (de) * 1985-07-26 1987-01-29 Zahnradfabrik Friedrichshafen Fluegelzellenpumpe
DE3623421A1 (de) * 1986-07-11 1988-01-14 Vickers Systems Gmbh Lenkhilfpumpe
DE4137279C2 (de) * 1991-11-13 2001-06-07 Deutz Ag Hubkolbenbrennkraftmaschine
DE19632024C2 (de) * 1996-08-08 1998-07-02 Daimler Benz Ag Ölpumpe für eine Brennkraftmaschine
US6478559B2 (en) * 2001-01-23 2002-11-12 Visteon Global Technologies, Inc. Balanced vane pump
US6481990B2 (en) * 2001-03-21 2002-11-19 Delphi Technologies, Inc. Hydraulically balanced multi-vane hydraulic motor
DE102004030481A1 (de) * 2003-06-30 2005-01-20 Luk Automobiltechnik Gmbh & Co. Kg Pumpe

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102012020705A1 (de) 2012-10-23 2014-04-24 Daimler Ag Kraftfahrzeuggetriebevorrichtung mit einer Getriebeölpumpe
DE102012020705B4 (de) 2012-10-23 2022-10-27 Arian Hoffmann Kraftfahrzeuggetriebevorrichtung mit einer Getriebeölpumpe
DE102015210098A1 (de) 2015-06-02 2016-12-08 Zf Friedrichshafen Ag Als Schnappring ausgeführter Sicherungsring

Also Published As

Publication number Publication date
DE112008002391A5 (de) 2010-06-10
US8425206B2 (en) 2013-04-23
WO2009036723A1 (fr) 2009-03-26
US20100239450A1 (en) 2010-09-23
ATE499531T1 (de) 2011-03-15
DE502008002699D1 (de) 2011-04-07
ES2359879T3 (es) 2011-05-27
EP2201250A1 (fr) 2010-06-30

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